I have 8 GEKKO SCIENCE 2-PAC miners. Perfect for learning how to mine bitcoin. I can also show you how to set it up and connect it to a pool. I have the required fans for cooling and powered USB racks for them and to add more. Hit me up! $70 each, cheapest around. TEXT ONLY :)

Runs amazingly well on minor overclocks as well as underclocks so you can turn down the fan volume if you're crafty with SSH on your own. Amazingly power units with Built in Screen to displaying Local IP (no more LAN scans, yay!) and current hash rate.

Bitcoin Asic Bitmain Antminer S7-LN, 2.70 THs per second hashing rate can be increased threw setting. In perfect condition minimal use. They were selling for 350.00 on Newegg.com but they sold out from time to time.Power supply comes with device. Power requirement standard 110v single phase any home outlet.There 2 available if you want an other

Avalon Mini ASIC Bitcoin BTC miners 200 GH/s - $3300 (Akron) READ THE LISTING BEFORE SENDING MESSAGE! I will not return message if answer is in listing! This is a great machines and will make you some good crypto currency... Can be used for more than just Bitcoin... Search web for Asic crypto currency and you can see what it works for. This is a stand alone unit... Not like those Butterfly or USB